Carbon arrow spine?

[unregistered]

Ok here is my problem. I recently began shooting with a release due to a finger injury. But arrow flight instantly went down the crapper. So I want to get a new set of carbon arrows but have no idea how the release will impact spine. I want to shoot 30 inch Easton Axis FMJs, from a 45# at 28. My draw length with the release is 29 1/2. I was hoping to shoot 125 grain stingers. Anybody have any ideas?

[unregistered]

Anyone?

[bowmaster12]

are you shooting of the shelf?  Not sure on spine question but i do know that when an arrow is releassed using fingers the arrow moves side to side when a release is used it moves up and down.  this may cause a problem with arrow flight if shootng of the shelf

[unregistered]

Yup I am shooting off the shelf. Would the up/down motion change the spine?

[bowmaster12]

sorry justin that is past my knoweldge sorry i cant help you out more good luck

[unregistered]

Lol no worries, this is going to be a tough nut to crack me thinks.

[Earthdog]

Justin,
Do a google search on the AMO spine deflection chart.
Once you have that,print it out an tack it to the wall beside your PC.
It lists the correct spine deflection for everything from 20lb too 95lb.
Once you've done that,go to the web site of your chosen arrow manufacturer and you will see they list the deflection of each size shaft they make.
From there you can make an informed decission on over all length and point wheight.
The AMO chart will give you a solid base to work from.
If you can't find the chart,let me know and I'd copy it and post it here.

Cheers.

[unregistered]

Thanks for the advice Earthdog. A friend and I managed to find those charts. But me is wondering whether the use of the mechanical release will alter the readings of said charts?

[Earthdog]

Justin I don't think it will,I've used them for both stringbows and release shooting compounds an they have held up for both.
Where you will come into some issues with a release is that they don't require quite as soft a spine as they won't paradox the arrow as much as with fingers.
Plunger type rests are a great tool for release shooters because you can set your center shot "or close to it if your bow is not full center shot" and then adjust spring tension to fine tune your arrow flight while still maintaining that center shot.
If you can tune from center that means you can go up in spine from the standard .520 right through to the .400's and still have good arrow flight.
Using the release with a center shot bow and plunger rest will give you a much wider range of spine deflections and makes your choice easier because you can tune to anything within reason.    

All the best.

[Keith Karr]

Justin,   Sent you a PM.

[maineac]

Did the release change how far the string actually comes back?  If the arrows were border line for spine the change might have been enough to make them weak or stiff.  If it is the up down piece changing your nock point height might relieve the issue.  Just some random thoughts on my part.

[Smallwood]

Generally, an arrow shot with a release will paradox up/down moreso than side to side.
I'm thinking you will need the next size stiffer shaft that what you have.
If you have the chance, I think mounting an elevated rest would probably help things too. I'd try that before having to buy new arrows.
This is all just speculation though, I'm sorry I don't have a definitive answer for you.

sammy

[unregistered]

Thanks for the replies folks.